Boot-ckimp



UNITED STATES PATENT OFFICE.

JOSEPH SANDERSON, OF CINCINNATI, OHIO.

BOOT-CRIME Specification of Letters latent No. 1,167, dated June '7,1839.

1o all whom t may concern Be it known that I, JOSEPH SANDERSON, ofCincinnati, Hamilton county, State of Ohio, have invented a new anduseful Apparatus for Crimping Boots, which is described as follows,reference being vhad to the annexed drawings of the same, making a partof this specification.

Figure 1 represents a side View of a boot crimp, upper, and the crimpingapparatus. Fig. 9. represents a side view of the key. Fig. 3 representsa side view of the mortise casting. Fig. a represents an end view of theapparatus put together. Fig. 5 represents horizontal view of the key.Fig. 6 represents horizontal view of the mortise. Fig. 7 representssection of the key. Fig. S represents section of the mortise.

Similar letters refer to similar parts in the several figures.

This apparatus consists of a rectangular casting A, Figs. l, 3, G, and8, in which there is made a mortise B, Fig. G, of a wedge shape, whos-esides are grooved lengthwise, as at C, C Figs. 4f, 6, 8, which mortisereceives a wedge shaped key D, Figs. l, 2, 4, 5 and 7 having tongues orprojecting edges E, E, Figs. l, 2, 5, 7, at the sides thereof to enterthe before described grooves in the sides of the mortise. This key,which is longer than the mortise, is cast with, or fastened to a plateF, Figs. l, 2, 4f, the same length and breadth of the casting. Throughthe plate, key, and mortise casting is drilled a circular aperture K,Figs. 5, 6. The ap erture in the key is formed into a female screw intowhich there is screwed a thumb screw G, Fig. l, passing through the key,and aperture in the mortise piece and turns with its point against theheel of the boot crimp H, Fig. l. From the blanc side of the casting A,Figs. l, 3, 4, 5, 8 there projects two guide pins I, I Figs. 3, 4, 8which enter apertures in the heel of the boot crimp by which theapparatus is kept in a proper position. The sides of the mortiseapproach each other about two thirds its length at an angle of about 2degrees-then are suddenly contracted about the 16th of an inch formingshoulders which are rounded to prevent cutting the leather during theoperation of crimping, and then the edges continue at an angle of about3 degrees to the small end of the mortise.

The sides of the key approaches each other at an angle `of 2 degrees,during half its length-then contracts suddenly and forms shoulders whichare also rounded-the sides then continue at an angle of 3 degrees to thesmall end of the key. The object of these offsets in the mortise and keyis to admit the leather or upper more easily into the crimpingapparatus, and when the key is driven forward to prevent the upper frommoving with the key, or slipping out of its proper position.

In straining the upper the key will be prevented from separating fromthe mortise, by the screw passing through these two parts.

The crimping of an upper by the use of the before described apparatus,will occupy about five minuteswhereas by the old mode of pincers andtacks-ten minutes are usually required to perform the same work, and inan imperfect state and injuring the leather.

To crimp an upper for a boot the two guide pins are inserted in theapertures in the heel of the crimp, and the mortise casting brought toits proper p0sition,-the upper L Fig. 1 is drawn over the front of thecrimp, and its edges placed in the grooves of the mortise plate, and thekey inserted which holds them fast. The thumb screw is then inserted inthe female screw and turned against the heel of the crimp to the rightwhich causes the key and mortise thus to recede from the crimp drawingwith them the sides of the upper and thus stretching or crimping it overthe front of the crimping board, while the screw turns in the sameposition. Y,

In placing the upper into the mortise the small end of the key serves asa guide to place the leather and the large end as a handle to lay holdof, and when the edges of the upper are properly placed, the key ispushed forward until the female screw in it and the hole in the mortiseplate coincide. The screw need not be separated from the key during theoperation of moving the apparatus from the crimping board.

The invention claimed and desired to be secured by Letters Patentconsists in- The construction of the wedge shaped mortise and keV withgrooves, tongues and offsets for the insertion of and holding the edgesof the upper or leather while crimping it.

JOSEPH SANDERSON.

Witnesses N. BENEDICT, WM. BISHOP.

